Hi, new to the forum, thanks for adding me. Ok, so I have this 2005 300c, 5.7liter that codes up po344, I've replaced cam sensor and inspected the wiring, also have the .5v reference voltage, beyond that, I'm stuck..any help would be appreciated

 

Not sure if this is helpful or not, I ran into something similar with my wife's PT Cruiser. Cam sensor replaced 3 times and still an intermittent no start condition and a similar code. Seems the wiring also feeds the crank sensor on that particular model. Replaced the crank sensor and no trouble since.

Just a thought...

Jeff